eFunda: Properties of Alloy Steel ASTM A204 Grade B
engineering fundamentals Alloy Steel ASTM A204 Grade B
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ASTM A204 Grade B
Category Steel
Class Alloy steel
Designations United States: UNS K12020

Composition
ElementWeight %
C  0.27 
Mn  0.9 
P  0.035 
S  0.04 
Si  0.15-0.30 
Ni  0.45-0.60 
Mo  0.45-0.60 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  

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